The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 15, 1986
Filed:
Aug. 27, 1984
Walter F Anderson, Jr, Minneapolis, MN (US);
Gary R Ashton, St. Paul, MN (US);
Peter B Jamieson, St. Paul, MN (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A continuous tone image recording system comprises a solid state laser diode capable of sending out an analog signal-controlled pulsed beam of light, a continuous feedback circuit for stabilizing the laser diode light output, and an optical system for changing the path of the beam of light. The laser beam scans across a photosensitive receptor surface to provide scanned lines, which are positioned along the length of the receptor surface so as to provide images containing at least 64 levels of gray on transparent recording media or at least 32 levels of gray on opaque media.